criteria in the relevant regulations. The Administration may accept the
use of an electronic loading and stability computer or equivalent means
for this purpose."

2 Chapter II-1, Regulation 20-1, new　Regulation 20-1　Closure　
of cargo loading door

The following new regulation 20-1 is added after existing regulation
20. "Regulation 20-1 Closure of cargo loading doors

1 This regulation applies to all passenger ships.

2 The following doors, located above the margin line, shall be closed
and locked before the ship proceeds on any voyage and shall remain closed
and locked until the ship is at its next berth:

.1 cargo loading doors in the shell or the boundaries of enclosed
superstructures;

.2 bow visors fitted in positions, as indicated in paragraph 2.1;

.3 cargo loading doors in the collision bulkhead;

.4 weathertight ramps forming an alternative closure to those
defined in paragraphs 2.1 to 2.3 inclusive.

Provided that where a door cannot be opened or closed or while the
ship is at the berth such a door may be opened left open while the ship
approaches or draws away from the berth, but only so far as may be
necessary to enable the door to be immediately operated. In any case,　the
inner bow door must be kept closed.

3 Notwithstanding the requirements of paragraphs 2.1 and 2.4, the
Administration may authorize that particular doors can be opened at the
discretion of the master, if necessary for the operation of the ship or
the embarking and disembarking of passengers, when the ship is at safe
anchorage and provided that the safety of the ship is not impaired.

4 The master shall ensure that an effective system of supervision and
reporting of the closing and opening of the doors referred to in paragraph
2, is implemented.

5 The master shall ensure, before the ship proceeds on any voyage,

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